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CVE-2019-15545

23
FAUCET Score

CVE-2019-15545 describes a high-severity vulnerability in the libp2p-core Rust crate, affecting versions prior to 0.8.1, where attackers can spoof ed25519 signatures. This allows for unauthenticated remote attacks with low complexity, leading to high integrity impacts without requiring user interaction. While the vulnerability has a CVSS score of 7.5, there is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.3, < 0.8.1CPE matchmatch criteria
cpe:2.3:a:libp2p:libp2p:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.77%
Probability of exploitation in next 30 days
EPSS Percentile
51.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0076 is in the 27th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

rustpatch availablevia ghsa
Product: libp2p-coreFixed in: 0.8.1

Vendor Advisories (1)

rustGHSA-4q4x-67hx-5mpghigh

Failure to properly verify ed25519 signatures in libp2p-core

Aug 25, 2021

References

rustsec.org / advisories/RUSTSEC-2019-0004.html
Third Party Advisory